102220201121212 has 24 divisors (see below), whose sum is σ = 182699631664704. Its totient is φ = 50020404078912.

The previous prime is 102220201121183. The next prime is 102220201121243. The reversal of 102220201121212 is 212121102022201.

It is a super-2 number, since 2×102220201121212² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102220201121212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8015643 + ... + 16391794.

It is an arithmetic number, because the mean of its divisors is an integer number (7612484652696).

Almost surely, 2^{102220201121212} is an apocalyptic number.

It is an amenable number.

102220201121212 is a deficient number, since it is larger than the sum of its proper divisors (80479430543492).

102220201121212 is a wasteful number, since it uses less digits than its factorization.

102220201121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24429765 (or 24429763 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102220201121212 its reverse (212121102022201), we get a palindrome (314341303143413).

The spelling of 102220201121212 in words is "one hundred two trillion, two hundred twenty billion, two hundred one million, one hundred twenty-one thousand, two hundred twelve".